lcd.c

s3c44b0x中lCD的试验程序

    if( usX1 < usX0 )
    {
        GUISWAP (usX1, usX0);
    }

    while( (usWidth--) > 0 )
    {
        usLen = usX1 - usX0 + 1;
        while( (usLen--) > 0 )
        {
        	LCD_PutPixel(usX0 + usLen, usY0, ucColor);
        }
        usY0++;
    }
}

/*********************************************************************************************
* name:		Lcd_Draw_VLine()
* func:		Draw vertical line with appointed color
* para:		usX0,usY0 -- line's start point coordinate
*			usY1 -- line's end point Y-coordinate
*			ucColor -- appointed color value
*			usWidth -- line's width
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void Lcd_Draw_VLine (INT16 usY0, INT16 usY1, INT16 usX0, INT8U ucColor, INT16U usWidth)
{
	INT16 usLen;

    if( usY1 < usY0 )
    {
        GUISWAP (usY1, usY0);
    }

    while( (usWidth--) > 0 )
    {
        usLen = usY1 - usY0 + 1;
        while( (usLen--) > 0 )
        {
        	LCD_PutPixel(usX0, usY0 + usLen, ucColor);
        }
        usX0++;
    }
}

/*********************************************************************************************
* name:		Lcd_DspAscII8x16()
* func:		display 8x16 ASCII character string 
* para:		usX0,usY0 -- ASCII character string's start point coordinate
*			ForeColor -- appointed color value
*			pucChar   -- ASCII character string
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void Lcd_DspAscII8x16(INT16U x0, INT16U y0, INT8U ForeColor, INT8U * s)
{
	INT16 i,j,k,x,y,xx;
	INT8U qm;
	INT32U ulOffset;
	INT8 ywbuf[16],temp[2];
    
	for( i = 0; i < strlen((const char*)s); i++ )
	{
		if( (INT8U)*(s+i) >= 161 )
		{
			temp[0] = *(s + i);
			temp[1] = '\0';
			return;
		}
		else
		{
			qm = *(s+i);
			ulOffset = (INT32U)(qm) * 16;		//Here to be changed tomorrow
			for( j = 0; j < 16; j ++ )
			{
				ywbuf[j] = g_auc_Ascii8x16[ulOffset + j];
            }

            for( y = 0; y < 16; y++ )
            {
            	for( x = 0; x < 8; x++ ) 
               	{
                	k = x % 8;
			    	if( ywbuf[y]  & (0x80 >> k) )
			       	{
			       		xx = x0 + x + i*8;
			       		LCD_PutPixel(xx, y + y0, (INT8U)ForeColor);
			       	}
			   	}
            }
		}
	}
}

/*********************************************************************************************
* name:		Lcd_DspAscII6x8()
* func:		display 6x8 ASCII character string 
* para:		usX0,usY0 -- ASCII character string's start point coordinate
*			ForeColor -- appointed color value
*			pucChar   -- ASCII character string
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void Lcd_DspAscII6x8(INT16U usX0, INT16U usY0,INT8U ForeColor, INT8U* pucChar)
{
	INT32U i,j;
	INT8U  ucTemp;

	while( *pucChar != 0 )
	{
		for( i=0; i < 8; i++ )
		{
  			ucTemp = g_auc_Ascii6x8[(*pucChar) * 8 + i];
  			for( j = 0; j < 8; j++ )
  			{
  				if( (ucTemp & (0x80 >> j)) != 0 )
  				{
  					LCD_PutPixel(usX0 + i, usY0 + 8 - j, (INT8U)ForeColor);
  				}  				
  			}
		}
		usX0 += XWIDTH;
		pucChar++;
	}
}

#ifndef Eng_v
/*********************************************************************************************
* name:		Lcd_DspHz16()
* func:		display chinese character string in 16x16 dot array
* para:		usX0,usY0 -- ASCII character string's start point coordinate
*			ForeColor -- appointed color value
*			pucChar   -- ASCII character string
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
extern const INT8U g_auc_HZK16[];
void Lcd_DspHz16(INT16U x0, INT16U y0, INT8U ForeColor, INT8U *s)
{
	INT16 i,j,k,x,y,xx;
	INT8U qm,wm;
	INT32U ulOffset;
	INT8 hzbuf[32],temp[2];

	for( i = 0; i < strlen((const char*)s); i++ )
	{
		if( ((INT8U)(*(s+i))) < 161 )
		{
			temp[0] = *(s+i);
			temp[1] = '\0';
			break;
		}
		else
		{
			qm = *(s+i) - 161;
    		wm = *(s + i + 1) - 161;
       		ulOffset = (INT32U)(qm * 94 + wm) * 32;
			for( j = 0; j < 32; j ++ )
            {
            	hzbuf[j] = g_auc_HZK16[ulOffset + j];
            }
            for( y = 0; y < 16; y++ )
            {
	        	for( x = 0; x < 16; x++ ) 
	            {
                	k = x % 8;
				   	if( hzbuf[y * 2 + x / 8]  & (0x80 >> k) )
				    {
				    	xx = x0 + x + i * 8;
				    	LCD_PutPixel( xx, y + y0, (INT8U)ForeColor);
				    }
			   	}
           	}
		    i++;
		}
	}
}
#endif
/*********************************************************************************************
* name:		ReverseLine()
* func:		Reverse display some lines 
* para:		ulHeight -- line's height
*			ulY -- line's Y-coordinate
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void ReverseLine(INT32U ulHeight, INT32U ulY)
{
	INT32U i, j, temp;
	
	for( i = 0; i < ulHeight; i++ )
	{
		for( j = 0; j < (SCR_XSIZE/4/2) ; j++ )
		{
			temp = *(INT32U*)(LCD_VIRTUAL_BUFFER + (ulY+i)*SCR_XSIZE/2 + j*4);
			temp ^= 0xFFFFFFFF;
			*(INT32U*)(LCD_VIRTUAL_BUFFER + (ulY+i)*SCR_XSIZE/2 + j*4) = temp;
		}
	}
}

/*********************************************************************************************
* name:		Zdma0Done()
* func:		LCD dma interrupt handle function
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
static INT8U ucZdma0Done=1;	//When DMA is finish,ucZdma0Done is cleared to Zero
void Zdma0Done(void)
{
	rI_ISPC=BIT_ZDMA0;	    //clear pending
	ucZdma0Done=0;
}

/*********************************************************************************************
* name:		Lcd_Dma_Trans()
* func:		dma transport virtual LCD screen to LCD actual screen
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void Lcd_Dma_Trans(void)
{
	INT8U err;
	
	ucZdma0Done=1;
	//#define LCD_VIRTUAL_BUFFER	(0xc400000)
	//#define LCD_ACTIVE_BUFFER	(LCD_VIRTUAL_BUFFER+(SCR_XSIZE*SCR_YSIZE/2))	//DMA ON
	//#define LCD_ACTIVE_BUFFER	LCD_VIRTUAL_BUFFER								//DMA OFF
	//#define LCD_BUF_SIZE		(SCR_XSIZE*SCR_YSIZE/2)
	//So the Lcd Buffer Low area is from LCD_VIRTUAL_BUFFER to (LCD_ACTIVE_BUFFER+(SCR_XSIZE*SCR_YSIZE/2))
	rNCACHBE1=(((unsigned)(LCD_ACTIVE_BUFFER)>>12) <<16 )|((unsigned)(LCD_VIRTUAL_BUFFER)>>12);
  	rZDISRC0=(DW<<30)|(1<<28)|LCD_VIRTUAL_BUFFER; // inc
  	rZDIDES0=( 2<<30)  |(1<<28)|LCD_ACTIVE_BUFFER; // inc
        rZDICNT0=( 2<<28)|(1<<26)|(3<<22)|(0<<20)|(LCD_BUF_SIZE);
        //                      |            |            |             |            |---->0 = Disable DMA
        //                      |            |            |             |------------>Int. whenever transferred
        //                      |            |            |-------------------->Write time on the fly
        //                      |            |---------------------------->Block(4-word) transfer mode
        //                      |------------------------------------>whole service
	//reEnable ZDMA transfer
  	rZDICNT0 |= (1<<20);		//after ES3
    rZDCON0=0x1; // start!!!  

	Delay(500);
	//while(ucZdma0Done);		//wait for DMA finish
}

/*********************************************************************************************
* name:		Lcd_Test()
* func:		LCD test function
* para:		none
* ret:		none
* modify:
* comment:		
*********************************************************************************************/
void Lcd_Test(void)
{
	/* initial LCD controller */
	Lcd_Init();
	/* clear screen */
	Lcd_Clr();
	Lcd_Active_Clr();

	/* draw rectangle pattern */ 
    #ifdef Eng_v // english version
	Lcd_DspAscII8x16(10,0,DARKGRAY,"Embest S3CEV40 ");
	#else
	Lcd_DspHz16(10,0,DARKGRAY,"英蓓特三星实验评估板");
	#endif
	Lcd_DspAscII8x16(10,20,BLACK,"ShenZhen Embest Info&Tech Co.,LTD");
	Lcd_Draw_Box(10,40,310,230,14);
	Lcd_Draw_Box(20,45,300,225,13);
	Lcd_Draw_Box(30,50,290,220,12);
	Lcd_Draw_Box(40,55,280,215,11);
	Lcd_Draw_Box(50,60,270,210,10);
	Lcd_Draw_Box(60,65,260,205,9);
	Lcd_Draw_Box(70,70,250,200,8);
	Lcd_Draw_Box(80,75,240,195,7);
	Lcd_Draw_Box(90,80,230,190,6);
	Lcd_Draw_Box(100,85,220,185,5);
	Lcd_Draw_Box(110,90,210,180,4);
	Lcd_Draw_Box(120,95,200,175,3);
	Lcd_Draw_Box(130,100,190,170,2);
	BitmapView(125,135,Stru_Bitmap_gbMouse);
	Lcd_Dma_Trans();

}